European Turbulence Conference 2015

tag

12:15
15 mins

TURBULENCE MODULATION IN PARTICLE LADEN PIPE FLOW: EXACT REGULARIZED POINT PARTICLE METHOD
Francesco Battista, Roberta Messina, Paolo Gualtieri, Carlo Massimo Casciola

Session: Multiphase and non-Newtonian flows 4
Session starts: Friday 28 August, 10:30
Presentation starts: 12:15
Room: Room D

Francesco Battista (University of Rome 'La Sapienza')
Roberta Messina (University of Rome 'La Sapienza')
Paolo Gualtieri (University of Rome 'La Sapienza')
Carlo Massimo Casciola (University of Rome 'La Sapienza')

Abstract:
Many technological applications are characterized by turbulent bounded flows with dispersed particles. For high mass load (particle/fluid mass ratio) a significant inter-phase momentum exchange occurs (two-way coupling regime), inducing a significant alteration of the turbulent field which, in turn, modifies the dynamics of the suspended phase. Aim of the present study is exploring the potentially of recently developed momentum coupling method, dubbed the Exact Regularized Point Particle (ERPP) method, in reproducing via Direct Numerical Simulation (DNS) the detailed dynamics of a particles laden turbulent pipe flow. The comparison with available experimental and numerical data confirms the ability of the new approach in reproducing the relevant dynamics also in parameter ranges which are unaccessible to standard techniques.